Talcing apparatus



y 1934. A. w. KEEN Er AL 1,957,270

TALC ING APPARATUS Filed Aug. 4, 1931 INVENTORS 7 JLEX/J' 14 KEE/VHAKOLD 7 BATT/A/ PERCY 6 DUI, 3/ 3 Patented May 1, 1934 rare-hr orrica1,957,270 TALoiNo Arreaa'rus Alexis W. Keen, Passaic, Harold T. Battin,Ridgeweod, and Percy C. Button, Nutley, N. J assignors to Revere RubberCompany, Providence, it. L, a corporation of Rhode Island ApplicationAugust 4:, 1931, Serial No. 554,974

5 Claims.

This invention relates to the art of applying talc or similar powderedmaterials to tacky strips or threads and is particularly directed to themanufacture of lengths of filaments or threads of rubber. As thesethreads or filaments are formed by a producing machine, it is necessarythat they be talced in order that they may be wound on reels orcollected in other devices without danger of sticking together. Theinvention is particularly concerned with talcing vulcanized rubberfilaments, which although not possessing a great amount of tack, requiretalcing in order that residual tackiness be eliminated and that they maybe more readily handled. The invention is applicable, however, to anystage in the manufacture of filaments of rubber or similar materialswhere a talcing operation is desired. By talc we mean any powdereddusting material capable of use to reduce tackiness and facilitatehandling. This includes not only the hydrous magnesium silicate crystalsordinarily considered as talc, but also potstone, rensselaerite,soapstone, steatite, agalite, mica, kieselguhr, wood flour, etc.

An object of this invention is to provide a means for forming acontinuous pile or bank of talc through which filaments or threads maybe drawn without forming permanent channels through which the filamentscan pass and avoid contact with the talc.

Other objects and advantages of the invention will more clearly appearwhen reference is had to the following specification and drawing:

In the drawing:

Fig. 1 is a plan view of an apparatus which embodies the principles ofthis invention.

Fig. 2 is a sectional view taken along lines 2-2 of Fig. 1.

A series of parallel threads 1, for instance rubber threads made on anysuitable thread forming machine, are led from a conveyor 2 over a drum 4and through a mass of talc l5 piled on the top portion of the talcingdevice. After passing through the pile of talc the threads are drawncontinuously onward over roller 6 from whence they are associatedtogether in any desired form, for instance on reels for subsequentshipment on spools or in skeins.

The talcer proper consists of a container '7 in which is rotated a drum16 fitted with pins 9 and 10 for agitating the talc 14. The drum 16 issupported on a shaft 8 which passes through the sides of the container'1 and is J'ournaled in support 24. At the end of shaft 8 is a drivingsprocket or pulley 5. Pins 9 on the drum are disposed spirallytherearound and perform the function of keeping the talc loosened. Thepins 10 are arranged in a straight line on the surface of the drum andare designed to carry a quantity of talc upwardly through the slot 11extending along the top of the container, to form the pile 15. A baifle12 is arranged longitudinally of the drum and is connected to thecontainer '7, which baffle contains slots 12' through which the pins 9and 10 are adapted to pass when the drum is rotated. This bafile sets upa back pressure which causes the tale to be forced upwardly through slot11. Excess talc falls through an opening 13 back into the container.

The device may be mounted in any suitable manner. For instance standards21 may be constructed on a base 20 with an adjustable support 24 securedthereto by bolts 23. In this support is fixed the container 7. Thesprocket 5 on shaft B may be driven by a suitable means such as a chain3'? which may also pass over sprocket 36 of shaft 31 and sprocket 38 ofshaft 39. This provides for the drive of drums 3, 16 and 6 through shaft31 which may be driven by a belt 30 on a pulley 32. At the other end ofshaft 31 another sprocket 33 may be provided to drive shaft 40 by meansof sprocket 34 and chain 35, drum 4 being fixed to shaft 40. In thismanner the various moving parts of the apparatus may be operated.

The pins 9 and 10, cooperating with the bailie 12 and the sides of thecontainer, cause a constant fiow of talc through slot 11 and onto thetop surface 50 of the talcer. The bank is thus under a continualagitation and consequently threads or filaments which pass therethroughare not able to tunnel permanently through the pile and thereby escapecontact therewith.

Obviously variations of the device described for purposes ofillustration may be made without departing from the principles of theinvention.

Having thus described our invention, what we claim and desire to protectby Letters Patent is:

1. In combination with a container, means for continuously advancing ofparallel elastic filaments over the top of said container, means forcontinually forcing a pile of talc from said container transversely ofthe path of and into intimate contact with the surfaces of saidfilaments.

2. In combination with a container means for continuously advancing aseries of parallel elastic filaments over the top of said container,rotary means for continually forcing a pile of talc from said containertransversely of the path of said rial, and means whereby surplusmaterial may be returned to the container.

5. In a combination, a covered fixed container for dusting material, atransverse opening in a wall of said container, means for feeding aseries of filaments across said opening, rotary means for supplying abody of dusting material from said container through said opening, andmeans whereby surplus material may be returned to the container.

ALEXIS W. KEEN. HAROLD T. BATTIN. PERCY C. DUTTON.

CERTIFICATE 6F CORRECTION.

Patent No. 1,957, 270. May 1, 1934.

ALEXIS W. KEEN, ET AL.

It is hereby certified that error appears in the printed specificationof the above numbered patent requiring correction as foilows: Page 1,line 101, claim 1, after "advaneing"insert a series; and that the saidLetters Patent should be read with this correction therein that the samemay conform to the record of the case in the Patent Office.

Signed and sealed this 19th day of June, A. D. 1934.

Bryan M. Battey (Seal) Acting Commissioner of Patents.

